An Italian renaissance castle in the heart of Napa Valley, Castello di Amorosa is a sweet spot to bring kids and get a taste of Europe. The castle was built from scratch by Dario Sattui, whose vision was to give a slice of Italian-style wines to the discerning Napa audience. The result is a marvelous medieval structure that is one part maze, one part authentic castle (complete with underground torture chamber). It's as close as you can get to Siena without leaving California. Wine tastings are available daily, and several footage and films have been shot here.